ISIS Takes Responsibility for Suicide Bombing in Afghanistan That Killed at Least 33

More than 100 others were injured.

Ghani has warned before that ISIS was starting to establish itself in Afghanistan.

"If we don't stand on the same line united, these people are going to destroy us," he said today.

"We send our deepest sympathies and condolences to the families of the victims and pray for speedy recovery of the injured," the statement read.

The Associated Press contributed to this story.